Hi, I see a failure reported on IGT-CI for this series for SKL, igt@gem_ctx_isolation@preservation-s3@rcs0: shard-skl: PASS -> DMESG-WARN Changes set in this series are applicable for gen12 onward platforms except TGL/RKL. So above failure look like a false alarm to me. Regards -Ayaz > -----Original Message----- > From: Siddiqui, Ayaz A <ayaz.siddiqui@xxxxxxxxx> > Sent: Friday, September 3, 2021 2:52 PM > To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx > Cc: Siddiqui, Ayaz A <ayaz.siddiqui@xxxxxxxxx> > Subject: [PATCH V5 0/5] drm/i915/gt: Initialize unused MOCS entries to > L3_WB > > Gen >= 12 onwards MOCS table doesn't have a setting for PTE so > I915_MOCS_PTE is not a valid index and it will have different MOCS values > are based on the platform. > > To detect these kinds of misprogramming, all the unspecified and reserved > MOCS indexes are set to WB_L3. TGL/RKL unspecified MOCS indexes are > pointing to L3 UC are kept intact to avoid API break. > > This series also contains patches to program BLIT_CCTL and CMD_CCTL > registers to UC. > Since we are quite late to update MOCS table for TGL so added a new MOCS > table for ADL family. > > V2: > 1. Added CMD_CCTL to GUC regset list so that it can be restored > after engine reset. > 2. Checkpatch warning removal. > > V3: > 1. Changed implementation to have a framework only. > 2. Added register type for proper application. > 3. moved CMD_CCTL programming to a separate patch. > 4. Added L3CC initialization during gt reset so that MOCS indexes are > set before GuC initialization. > 5. Removed Renderer check for L3CC verification in selftest. > > V4: > 1. Moved register programming in Workaorund section as fake workaround. > 2. Removed seperate ADL mocs table, new logic is to set unused index as > L3_WB for gen12 platform except TGL/RKL. > > V5: > 1. Final version reviewed by Matt Roper 2. Removed "drm/i915/selftest: > Remove Renderer class check for l3cc table read" form series, > this patch will be taken care of in different series. > > Ayaz A Siddiqui (4): > drm/i915/gt: Add support of mocs propagation > drm/i915/gt: Set CMD_CCTL to UC for Gen12 Onward > drm/i915/gt: Set BLIT_CCTL reg to un-cached > drm/i915/gt: Initialize unused MOCS entries with device specific > values > > Sreedhar Telukuntla (1): > drm/i915/gt: Initialize L3CC table in mocs init > > drivers/gpu/drm/i915/gt/intel_gt.c | 2 + > drivers/gpu/drm/i915/gt/intel_gt_types.h | 4 ++ > drivers/gpu/drm/i915/gt/intel_mocs.c | 72 ++++++++++++++------- > drivers/gpu/drm/i915/gt/intel_mocs.h | 1 + > drivers/gpu/drm/i915/gt/intel_workarounds.c | 70 > +++++++++++++++++++- > drivers/gpu/drm/i915/i915_reg.h | 26 ++++++++ > 6 files changed, 151 insertions(+), 24 deletions(-) > > -- > 2.26.2
